I apologize for the absence, but I was very busy for a long time ...
I was able to change the tank in the mercedes and I have to say that finally goes very very well.
the only two things that do not go perfectly, are
the float inside the tank, does not mark the right level of gasoline
and the automatic transmission, which has cold slips until the oil changes as it heats up. the rest goes perfectly
here is a bunch of photos, including the differences between new and old tank ...
it seems that in the old fuel filter has been liquefied and folded ....